Abstract
We proposed and demonstrated a novel technique to measure time-resolved transverse emittances of the hydrogen ion (H-) beam in a 1-GeV high-power accelerator. The measurement is performed in a nonintrusive manner by using a laser comb-laser pulses with controllable multilayer temporal structure. The technique has been applied to the transverse emittance measurement of a 1-GeV H-beam in the Spallation Neutron Source high energy beam transport line. More than 20 time-resolved emittances have been simultaneously determined within a macropulse, a single minipulse, or a single bunch of the 1.4-MW neutron production H-beam from a single measurement.
| Original language | English |
|---|---|
| Article number | 102806 |
| Journal | Physical Review Accelerators and Beams |
| Volume | 23 |
| Issue number | 10 |
| DOIs | |
| State | Published - Oct 28 2020 |
| Externally published | Yes |
Funding
Support from S. Cousineau is acknowledged. We thank A. Webster and S. Murray III for their technical help and J. Holmes for his help with the manuscript. This research used resources at the Spallation Neutron Source, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory. This manuscript has been authored by UT-Battelle, LLC, under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy (DOE). The U.S. government retains and the publisher, by accepting the article for publication, acknowledges that the U.S. government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for U.S. government purposes.